html, body{
     width: 100%;
}
*{
    padding: 0;
	margin: 0;	
	/* 去掉列表项前面默认的小点*/
	list-style: none;
}
.w{
	background: rgb(125,125,125);
	width: 100%;
	height: 600px;
	margin: 0 auto 0 auto;
	position: relative;
}
.w .p{
	width: 250px;
	height: 130px;
	background: url(../img/QQ截图20180326163422.png);
	margin: 0 auto 0 auto;
	position: absolute;
	top: 20px;
	left: 450px;
}
.w .box{
	width: 300px;
	height: 500px;
	margin: 0 auto 0 auto;
	line-height: 60px;
	text-align: center;
	position: absolute;
	top: 120px;
	left: 430px;
}
.box  li{
	line-height: 20px;
	text-align: center;
}
.box  .enroll{
    width: 200px;
	height: 50px;
	background: black;
	color: white;
}

